DAHUA CS4218-16ET-135 18-Port Cloud Managed Desktop Switch with 16-Port PoE

The DAHUA CS4218-16ET-135 18-Port Cloud Managed Desktop Switch with 16-Port PoE is a professional managed PoE switch designed for CCTV systems, offices, schools, retail stores, apartment blocks, and business networks that need stable connectivity, centralized switch management, and reliable power delivery for multiple IP cameras and PoE devices. It features 16 × 10/100 Mbps PoE ports, plus 2 combo uplink ports that support RJ45 Gigabit Ethernet or 1000 Mbps SFP fiber uplink, making it suitable for larger surveillance and structured network deployments. With a 135W total PoE budget, Hi-PoE and IEEE 802.3bt support on select ports, cloud and web management, PoE watchdog, long-distance PoE transmission up to 250m, and rack-mount desktop design, this switch is a strong solution for medium-sized CCTV and PoE network installations.

Product Features

18-Port Switch with 16 PoE Camera Ports

The DAHUA CS4218-16ET-135 comes with 18 ports in total, including 16 × RJ45 10/100 Mbps PoE ports for powering compatible IP cameras and network devices. It also includes 2 combo uplink ports that can be used either as 2 × RJ45 10/100/1000 Mbps ports or 2 × 1000 Mbps SFP uplink ports, giving flexibility for copper or fiber backbone connection depending on the installation.

135W PoE Budget with Hi-PoE / IEEE 802.3bt Support

This switch supports IEEE 802.3af, IEEE 802.3at, Hi-PoE, and IEEE 802.3bt power supply standards. Dahua lists Ports 1–2 with up to 90W each and Ports 3–16 with up to 30W each, with a total PoE power budget of 135W. This makes it suitable for standard PoE IP cameras as well as selected higher-power devices such as PTZ cameras or specialized PoE equipment.

Cloud, Web, and App-Based Management

The CS4218-16ET-135 is a smart managed Layer 2 switch that supports web management and app management, allowing installers and businesses to configure, monitor, and manage the switch more easily. This is useful for structured CCTV systems and office networks that need more control than a basic unmanaged switch can provide.

PoE Watchdog for Camera Stability

This model supports PoE Watchdog, a feature that automatically detects failed or unresponsive PoE-connected devices and restarts the corresponding port to recover the connection. This helps improve camera uptime and reduces maintenance effort in surveillance installations.

Long Distance PoE Transmission up to 250m

The switch supports long-distance PoE transmission, allowing a PoE port to reach up to 250 meters in extend mode where supported, with reduced bandwidth. This is useful for cameras installed at gates, fences, corridors, parking areas, and other points far from the main network cabinet.

VLAN and Network Protection Features

The DAHUA CS4218-16ET-135 supports port-based VLAN, IEEE 802.3x flow control, DHCP client, and managed switching functions that help improve traffic organization and network reliability. This makes it a good fit for surveillance systems where network segmentation and stable camera communication are important.

Rack-Mount Metal Design

With its full metal dust-proof enclosure and desktop / rack-mount form factor, the switch is suitable for network cabinets, CCTV racks, office IT rooms, schools, retail back offices, and structured surveillance installations that require a durable professional switch.

Product Specifications

• Brand: Dahua
• Model: CS4218-16ET-135
• Product Type: 18-Port Cloud Managed Desktop Switch with 16-Port PoE
• Ports: 18 ports total
• PoE Ports: 16 × RJ45 10/100 Mbps PoE ports
• Combo Uplink Ports: 2 × RJ45 10/100/1000 Mbps combo ports / 2 × 1000 Mbps SFP combo ports
• PoE Standard: IEEE 802.3af / IEEE 802.3at / Hi-PoE / IEEE 802.3bt
• PoE Power Budget: 135W total
• Max PoE Power Ports 1–2: Up to 90W each
• Max PoE Power Ports 3–16: Up to 30W each
• Switching Capacity: 7.2 Gbps
• Packet Forwarding Rate: 5.36 Mpps
• Packet Buffer Size: 4 Mbit
• MAC Address Table: 8K
• Jumbo Frame: 15K bytes
• VLAN Support: Port-based VLAN
• Management: Web management / App management / cloud-managed smart switch platform
• Special Functions: Intelligent PoE, PoE Watchdog, long-distance PoE transmission
• Power Supply: Built-in 100–240V AC, 47–63Hz
• Power Consumption: ≤6W idle / 154W full load
• Static Protection: Air discharge 8 kV, contact discharge 6 kV
• Lightning Protection: Common mode 4 kV, differential mode 2 kV
• Operating Temperature: -10°C to +55°C
• Storage Temperature: -40°C to +70°C
• Operating Humidity: 5%–95% RH
• Dimensions: 440 × 220 × 44 mm
• Installation Type: Desktop / rack mount
• Housing Material: Sheet metal
• Layer: Layer 2 smart managed switch